| 摘要 |
PROBLEM TO BE SOLVED: To downsize a head-up display device by providing a corner missing part and cutting a part of a reflection mirror whose base shape is square.SOLUTION: The present invention relates to a head-up display device 21 that comprises, inside a casing 22,: an image display unit 27; and an optical path formation component 25. The optical path formation component 25 has at least a reflection mirror 29 that causes an image 23 to be reflected, in which the reflection mirror 29 is configured such that a basic shape is square. The reflection mirror 29 whose basic shape is square has corner missing parts 42 to 44 formed in at least one of four corner parts 31 to 34. Further, the reflection mirror 29 whose basic shape is square is configured to be installed obliquely relative to a horizontal direction in the casing 22. Then, the corner missing parts 42 to 44 are provided in at least one of a corner part 32 on the uppermost side and a corner part 34 on the lowest side, which are a diagonal position of the obliquely disposed reflection mirror 29.SELECTED DRAWING: Figure 4 |
